#RC#
Most minor errors can be bypassed by switching to a more stable and private RPC endpoint. Several reports have highlighted a “state mismatch” in metamask-extension specifically under 4100. To handle the conflict related to 4100, ensure that no other dApp tabs are actively syncing.
The sudden appearance of an “invalid JSON-RPC” error marked 4100 is usually a node glitch. The metamask-extension contracts might be “paused” triggering 4100 during critical maintenance. The official project documentation is the best place to find advanced troubleshooting guides.
Sharing your error logs with the team helps them improve the protocol for the community. The move toward modular blockchain layers has introduced new types of synchronization errors. Check the status of the sequencer to avoid 4100 when moving assets to a rollup.
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